[VectorCombine][X86] shuffle-of-casts.ll - adjust zext nneg tests to improve costs for testing

Improves SSE vs AVX test results for #87510

Author: RKSimon

llvm/test/Transforms/VectorCombine/X86/shuffle-of-casts.ll

@@ -17,31 +17,31 @@ define <16 x i32> @concat_zext_v8i16_v16i32(<8 x i16> %a0, <8 x i16> %a1) {
   ret <16 x i32> %r
 }
 
-define <16 x i32> @concat_zext_nneg_v8i8_v16i32(<8 x i8> %a0, <8 x i8> %a1) {
-; CHECK-LABEL: @concat_zext_nneg_v8i8_v16i32(
-; CHECK-NEXT:    [[X0:%.*]] = zext nneg <8 x i8> [[A0:%.*]] to <8 x i32>
-; CHECK-NEXT:    [[X1:%.*]] = zext nneg <8 x i8> [[A1:%.*]] to <8 x i32>
+define <16 x i32> @concat_zext_nneg_v8i16_v16i32(<8 x i16> %a0, <8 x i16> %a1) {
+; CHECK-LABEL: @concat_zext_nneg_v8i16_v16i32(
+; CHECK-NEXT:    [[X0:%.*]] = zext nneg <8 x i16> [[A0:%.*]] to <8 x i32>
+; CHECK-NEXT:    [[X1:%.*]] = zext nneg <8 x i16> [[A1:%.*]] to <8 x i32>
 ; CHECK-NEXT:    [[R:%.*]] = shufflevector <8 x i32> [[X0]], <8 x i32> [[X1]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
 ; CHECK-NEXT:    ret <16 x i32> [[R]]
 ;
-  %x0 = zext nneg <8 x i8> %a0 to <8 x i32>
-  %x1 = zext nneg <8 x i8> %a1 to <8 x i32>
+  %x0 = zext nneg <8 x i16> %a0 to <8 x i32>
+  %x1 = zext nneg <8 x i16> %a1 to <8 x i32>
   %r = shufflevector <8 x i32> %x0, <8 x i32> %x1, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
   ret <16 x i32> %r
 }
 
 ; TODO - sext + zext nneg -> sext
-define <8 x i32> @concat_sext_zext_nneg_v4i8_v8i32(<4 x i8> %a0, <4 x i8> %a1) {
-; CHECK-LABEL: @concat_sext_zext_nneg_v4i8_v8i32(
-; CHECK-NEXT:    [[X0:%.*]] = sext <4 x i8> [[A0:%.*]] to <4 x i32>
-; CHECK-NEXT:    [[X1:%.*]] = zext nneg <4 x i8> [[A1:%.*]] to <4 x i32>
-; CHECK-NEXT:    [[R:%.*]] = shufflevector <4 x i32> [[X0]], <4 x i32> [[X1]], <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
-; CHECK-NEXT:    ret <8 x i32> [[R]]
+define <16 x i32> @concat_sext_zext_nneg_v8i16_v8i32(<8 x i16> %a0, <8 x i16> %a1) {
+; CHECK-LABEL: @concat_sext_zext_nneg_v8i16_v8i32(
+; CHECK-NEXT:    [[X0:%.*]] = sext <8 x i16> [[A0:%.*]] to <8 x i32>
+; CHECK-NEXT:    [[X1:%.*]] = zext nneg <8 x i16> [[A1:%.*]] to <8 x i32>
+; CHECK-NEXT:    [[R:%.*]] = shufflevector <8 x i32> [[X0]], <8 x i32> [[X1]], <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
+; CHECK-NEXT:    ret <16 x i32> [[R]]
 ;
-  %x0 = sext <4 x i8> %a0 to <4 x i32>
-  %x1 = zext nneg <4 x i8> %a1 to <4 x i32>
-  %r = shufflevector <4 x i32> %x0, <4 x i32> %x1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
-  ret <8 x i32> %r
+  %x0 = sext <8 x i16> %a0 to <8 x i32>
+  %x1 = zext nneg <8 x i16> %a1 to <8 x i32>
+  %r = shufflevector <8 x i32> %x0, <8 x i32> %x1, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
+  ret <16 x i32> %r
 }
 
 define <16 x i32> @concat_sext_v8i16_v16i32(<8 x i16> %a0, <8 x i16> %a1) {